Primary production
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Trend lines are shown when slope is significantly different from 0 at the p < 0.05 level. An orange line signifies an overall positive trend, and purple signifies a negative trend. Note that in the final report we will only test for trend when N >= 30. However, I have relaxed that requirement for the purposes of this document so that trends are highlighted when N >= 20. This means that some trends shown here will not be present in the final document. Dashed lines represent mean values of time series unless the indicator is an anomaly, in which case the dashed line is equal to 0. Shaded regions indicate the past ten years. If there are no new data for 2018, the shaded region will still cover this time period.
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Kevin to deliver in mid Dec when data is posted.
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Weekly chlorophyll concentrations and primary productivity in the Mid-Atlantic are shown for by the colored line for 2018. The long-term mean is shown in black and shading indicates +/- 1 sample SD.
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Water quality attainment in Chesapeake Bay following rolling three year assessment periods.
Narrative from Bruce Vogt - short write up on anomalies in salinity we saw this year following record breaking rain in 2018. The low salinities impacted hypoxia, fish and oysters.
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Kevin to deliver in mid Dec when data is posted.
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Weekly chlorophyll concentrations and primary productivity for 2018 in Gulf of Maine and Georges Bank are shown by the colored lines in the above figures. The long-term mean is shown in black and shading indicates +/- 1 sample SD.
Primary production anom - Not Updated
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Kevin to deliver in mid Dec when data is posted.
Wintertime (Dec-Mar) differences of normalized sea level pressures between Lisbon and Stykkisholmur/Reykjavik, Iceland since 1864.